Story: Superphosphate

Superphosphate den

Superphosphate den

The ‘engine room’ of a superphosphate works is the den, where sulfuric acid and rock phosphate react to produce superphosphate. Here, dry granulated superphosphate is being transported upwards and into storage on two narrow conveyor belts.

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Ballance Agri-Nutrients
Photograph by David Vernon

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How to cite this page:

Arthur Duncan, 'Superphosphate - New Zealand superphosphate', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/15572/superphosphate-den (accessed 23 February 2020)

Story by Arthur Duncan, published 24 Nov 2008